Winnebago County Soil Data
Winnebago County, Illinois
Avg pH
6.3
Texture
Silt Loam
Drainage
N/A
Organic Matter
5.4%
Hydrologic Group
N/A
Data Story
About Soil in Winnebago County, Illinois
Standard Acidity with High Quality
Winnebago County maintains a pH of 6.32, which is nearly identical to the Illinois state average of 6.39. It sits slightly more acidic than the 6.5 national median but remains highly productive. This balanced chemistry supports an impressive overall soil score of 83.9.
Ideal Silt and Sand Balance
A composition of 54.9% silt and 22.4% sand creates a loamy texture that balances drainage and moisture retention. The 19.4% clay content provides necessary mineral structure without making the soil difficult to work. This mix is highly prized for its versatility in the field.
Rich Organic Reserves
With 5.44% organic matter, these soils are far richer than the state average of 2.94%. An available water capacity of 0.210 in/in further boosts the county's growing potential. These nutrient-dense soils require less supplemental fertilizer than the national average.
Superior Agricultural Land Performance
While dominant drainage and hydrologic classes are not specifically recorded, the high soil score suggests excellent performance. The combination of high organic matter and sand helps keep the soil permeable. This land is among the highest-rated in the state for agricultural output.
Hardy Growing in Zone 5b
Gardeners in Zone 5b should take advantage of this nutrient-dense soil to grow vigorous root vegetables and hardy grains. The high organic content provides a massive head start for any planting project. Winnebago County is a premier location for anyone serious about gardening.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Hydrologic group data not available.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Silt Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Winnebago County have?
Winnebago County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 22% sand, 55% silt, and 19% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Winnebago County's soil acidic or alkaline?
Winnebago County's soil has a pH of 6.3, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Winnebago County?
Drainage class data is not currently available for Winnebago County.
What crops or plants grow well in Winnebago County's soil?
Based on Winnebago County's Silt Loam texture, pH of 6.3, and drainage class, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens.
What USDA soil order is found in Winnebago County?
The dominant USDA soil order for Winnebago County is not currently available in our dataset.
Planning your lawn? View lawn care data for Winnebago County on LawnByCounty.com →
Other Counties in Illinois
Soil data sourced from USDA SSURGO via Soil Data Access. Data is informational only and should not be used as a substitute for on-site soil testing. Contact your local NRCS office for site-specific soil information.